i have a 588 B1pso by Best Machine motor made 1215 on Holbrooks dyno.the motor is in a 2500 lb Daytona with a 4 speed lenco and a clutch.it has been 7.43@185 slipping the clutch and not geared right the motor was pulled down 2000rpm on the gear changes.i sold the lenco and putting in a Quick drive converter drive titanium bell from Jeff Bohr,Neal Chance billet converter and a 3 speed Liberty trans it should run now.